bug#73469: 29.4; mouse passing on terminal window generates events

[Eli Zaretskii <eliz@gnu.org>]

> From: Francesco Potortì <Potorti@isti.cnr.it>
> Date: Fri, 27 Sep 2024 09:48:24 +0200
> Cc: 73469@debbugs.gnu.org
> 
> I have found the culprit: it is xterm-mouse-mode.
> 
> >> I don't know when this has started happening.  I use the Emacs shipped
> >> by Debian, so I suppose it started when Debian pushed a new version
> >> into Testing.
> >
> >What was the previous Emacs version you used?
> 
> The problem started with 29.3 or 29.4, I did not take a note when I first saw the unusual behaviour.  Also because  it was strange and did not happen regularly, while of lately it happened regularly and I had to get down and find the reason because Emacs had become almost unusable on a terminal window.
> 
> I can easily turn on and off the problem by just calling xterm-mouse-mode after
> 
> emacs -Q -nw
> 
> Now I see that I had some problems in the last year which I had circumvented by unsetting COLORTERM before calling emacs under Screen.  It must have been something related, but don't remember what it was.
> 
> While trying to identify the environment leading to the bad behaviour, I see that the problem is not apparent on a different terminal and does not depend on the TERM env var.
> 
> I'll keep investigating when I find the time.  For the moment being, I'll just disbale xterm-mouse-mode

Jared, any further suggestions or ideas?